Public water system · CO0353230

Active

Del Norte Office

At a glance

Del Norte Office (PWSID CO0353230) is an active transient non-community water system in Rio Grande County, Colorado. It reports serving 69 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 10 violations for this system; none is health-based, and the most recent began in December 2019.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDCO0353230

System typeTransient non-community water system

Activity statusActive

Population served69

Service connections1

Primary water sourceGroundwater

Owner typeFederal government

Primacy agencyCO state drinking water program

City served—

StateColorado

ZIP—

CountyRio Grande County

How does Del Norte Office compare with other water systems in Rio Grande County?

By EPA's size categories, Del Norte Office is a very small system (500 people or fewer). Rio Grande County has 48 active public water systems. Its population served is well below the county average of 289 people per system, and accounts for 0.5% of the 13,885 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Del Norte Office is about half of that figure.

What does “transient non-community water system” mean?

A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Colorado has 956 active transient non-community water systems, 43% of the state's 2,207 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,437 Colorado systems (65%) list groundwater as their primary source.

Who owns and regulates Del Norte Office?

EPA lists Del Norte Office as owned by the federal government. The CO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 48 active systems in Rio Grande County (2.1%) are also owned by the federal government.

Does Del Norte Office have drinking water violations?

EPA's records list 10 violations for this system; none is health-based, and the most recent began in December 2019. The violations listed here began between April 2001 and December 2019. By type: 4 public notice, recordkeeping or other, 3 monitoring and reporting, 2 monitoring and 1 reporting. The contaminant or rule involved most often is Public Notice (4 of them). EPA lists 9 as resolved and 1 as unaddressed. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

Began	Violation	Contaminant or rule	Health-based	Status
2019-12-22	Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76	Public Noticecode 7500	No	Unaddressed
2019-09-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2019-02-17	Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76	Public Noticecode 7500	No	Resolved
2018-12-09	Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76	Public Noticecode 7500	No	Resolved
2018-11-11	Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76	Public Noticecode 7500	No	Resolved
2018-10-13	ReportingReporting, Assessment Forms (RTCR) · code 4A	Revised Total Coliform Rulecode 8000	No	Resolved
2017-10-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2002-08-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved

All 10 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Del Norte Office: frequently asked questions

Who runs Del Norte Office?

Del Norte Office (PWSID CO0353230) is a transient non-community water system owned by the federal government. It is regulated by the CO state drinking water program.

How many people does Del Norte Office serve?

Del Norte Office reports serving 69 people through 1 service connection in Rio Grande County, Colorado.

Where does Del Norte Office get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Del Norte Office have any drinking water violations?

EPA's records list 10 violations for this system; none is health-based, and the most recent began in December 2019. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Del Norte Office's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 10 violations for this system; none is health-based, and the most recent began in December 2019. For current results, consult EPA ECHO, or the CO state drinking water program.

Where can I find Del Norte Office's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Del Norte Office is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Rio Grande County

Water system	County	Population served	Type	Source
Monte Vista City of	Rio Grande	4,600	Community	Groundwater
Fun Valley Resort	Rio Grande	1,723	Transient non-community	Groundwater
Del Norte Town of	Rio Grande	1,429	Community	Groundwater
South Fork Rickel Park	Rio Grande	804	Transient non-community	Groundwater
South Fork West Municipal Town of	Rio Grande	566	Community	Groundwater
Sargent Elem and New High School Re33	Rio Grande	426	Non-transient non-community	Groundwater

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Del Norte Office, PWSID CO0353230, Colorado”, https://aquacensus.com/water-systems/colorado/del-norte-office-co0353230 (data as of October 1, 2026).